Have you even read your own source??? Here it is, for everyone to see:
"There is no vacuum current Jv in the Maxwell-Heaviside theory, and therefore there is no equivalent energy (24a) in that theory. The current Jv is conserved, and so Noether's theorem is not violated by the explanation offered in this communication... In higher symmetry electrodynamics such as O(3) electrodynamics or electrodynamics developed by Lehnert [6], there is energy inherent in vacuum itself, so no source or transmitter is needed in order for MEG to output current indefinitely..."
Now, what ninny would interpret such a thing as violative of the conservation of mass and energy, hmmm?
The fact is, I have been talking about the energy density of vacuum as an integral part of einsteins field equation. It figures more prominently in guth's inflation. How else did you think cosmologists explain an expanding universe, eh?
As for your meg, notice how the expression for energy is proportional to dV, a differential of radiation volume? How big do you suppose this volume need be for any useful application, hmmm? Do you have the balls to venture a guess and demonstrate how utterly irrelevant that is to the discussion on hand?
